Rates and Percents Unit Review

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It represents a part of a whole.

Front

Percent is always out of:

Back

100

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the top number (numerator) by the bottom number (denominator) and then multiply by 100.

Front

What is the formula to find the percent of a number?

Back

Percent of a number = (Percent / 100) * Total Number.

Front

If you have 25 out of 100 correct answers, what is your score in percent?

Back

25%.

Front

What does it mean if a team has a win percentage of 0.825?

Back

It means the team won 82.5% of their games.

Front

Which team has the best win record? Phillies - 0.825, Yankees - 0.500, Mets - 0.325, Orioles - 0.725

Back

Phillies.

Front

How do you find the total number if you know the percent and the part?

Back

Total = Part / (Percent / 100).

Front

What is the percent increase if a price goes from $50 to $75?

Back

Percent Increase = ((New Price - Old Price) / Old Price) * 100 = ((75 - 50) / 50) * 100 = 50%.

Front

What is the percent decrease if a price goes from $80 to $60?

Back

Percent Decrease = ((Old Price - New Price) / Old Price) * 100 = ((80 - 60) / 80) * 100 = 25%.